Exporting seed phrase from BitPay to other Wallets

[Bitcoin]

Exporting seed phrase from BitPay to other Wallets

I'm trying to understand how can I access wallet funds (that I created with BitPay and have seed and extended pk for) on other wallets (BTC core, trust, blockchain.com or exodus for example).

If I try to import just the direct seed into these apps, I get an empty wallet (if I import it in bitpay it shows that funds are there). I'm just trying to understand, what to do in case there is no more bitpay for example. I found a bitpay/copay recovery tool on GitHub, but don't seem to fully understand what it does. Can someone please explain why seeds from bitpay don't work on other apps, and if there is something to do about it.

Source: Exporting seed phrase from BitPay to other Wallets